Could an antibody slow Parkinson's? new trial seeks answers
NCT ID NCT03100149
First seen Oct 31, 2025 · Last updated Apr 28, 2026 · Updated 18 times
Summary
This study tests an experimental antibody drug called prasinezumab in people with early Parkinson's disease. The goal is to see if it can slow down worsening of symptoms over 52 weeks compared to a placebo. The trial involves 316 participants and includes a long-term extension to monitor safety and effects for up to 11 years.
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This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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Associated Neurologists of Southern CT PC
Fairfield, Connecticut, 06824, United States
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Aventura Neurologic Associates
Aventura, Florida, 33180, United States
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Barrow Neurology Clinics
Phoenix, Arizona, 85013, United States
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Baylor College
Houston, Texas, 77030, United States
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Beth Israel Deaconess Medical Center
Boston, Massachusetts, 02215, United States
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CHU Poitiers
Poitiers, 86021, France
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CHU Rouen Charles Nicolle
Rouen, 76031, France
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CHU de Nantes - Hopital Laennec
Saint-Herblain, 44800, France
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CHU de Nice Hopital Pasteur
Nice, 06002, France
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CIC - Hôpital Purpan
Toulouse, 31059, France
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CenExel Rocky Mountain Clinical Research, LLC
Englewood, Colorado, 80113, United States
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Central Texas Neurology Consultants
Round Rock, Texas, 78681, United States
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Clinica Universidad de Navarra
Pamplona/iruña, Navarre, 31008, Spain
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Columbia University
New York, New York, 10032, United States
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Corewell Health Neurology and Epilepsy - Beltline
Grand Rapids, Michigan, 49525, United States
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DZNE Clinical Trial Unit
München, 81377, Germany
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Fundacion Hospital de Alcorcon
Alcorcón, Madrid, 28922, Spain
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Groupe Hospitalier Pellegrin
Bordeaux, 33000, France
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Heinrich-Heine Universitätsklinik Düsseldorf
Düsseldorf, 40225, Germany
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Henry Ford Health System
West Bloomfield, Michigan, 48322, United States
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Hopital Gabriel Montpied
Clermont-Ferrand, 63003, France
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Hopital Henri Mondor
Créteil, 94010, France
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Hopital Pitie-Salpetriere APHP
Paris, 75013, France
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Hospital Clinic de Barcelona
Barcelona, 08036, Spain
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Hospital General de Catalunya
Sant Cugat del Vallès, Barcelona, 08195, Spain
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Hospital Universitari Vall d'Hebron
Barcelona, 08035, Spain
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Hospital Universitario Virgen Macarena
Seville, 41009, Spain
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Hospital Universitario de la Princesa
Madrid, 28006, Spain
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Hospital de la Santa Creu i Sant Pau
Barcelona, 08025, Spain
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Hôpital Michallon - Centre d'Investigation Clinique
Grenoble, 38043, France
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Klinik fur Neurologie
Berlin, 10117, Germany
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Klinik und Poliklinik für Neurologie Universitätsklinikum
Leipzig, 04103, Germany
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Medizinische Universität Innsbruck
Innsbruck, 6020, Austria
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Molecular Neurolmaging
New Haven, Connecticut, 06510, United States
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Neurology Center of North Orange County
Fullerton, California, 92835, United States
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Northwestern University
Evanston, Illinois, 60208, United States
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Oregon Health & Science Uni
Portland, Oregon, 97239, United States
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Paracelsus Elena Klinik Kassel
Kassel, 34128, Germany
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Parkinson's Disease and Movement Disorders Center of Boca Raton
Boca Raton, Florida, 33486, United States
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Philipps Universität Marburg
Marburg, 35043, Germany
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Policlínica Guipuzcoa
Donostia / San Sebastian, Guipuzcoa, 20014, Spain
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Quest Research Institute
Farmington Hills, Michigan, 48334, United States
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The Movement Disorder Clinic of Oklahoma
Tulsa, Oklahoma, 74136, United States
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UNIVERSITY of PENNSYLVANIA
Philadelphia, Pennsylvania, 19107, United States
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USC Keck Medical Center of USC
Los Angeles, California, 90033, United States
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USF Parkinsons Disease and Movement Disorders Center
Tampa, Florida, 33613, United States
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Uab Medicine
Birmingham, Alabama, 35233, United States
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Universitaettsklinikum Tübingen
Tübingen, 72076, Germany
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University of California at San Francisco
San Francisco, California, 94115, United States
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University of Kansas Medical Center
Kansas City, Kansas, 66160, United States
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University of Rochester Medical Center
Rochester, New York, 14618, United States
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University of Vermont Medical Center
Burlington, Vermont, 05401, United States
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Universitätsklinikum Ulm
Ulm, 89081, Germany
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Vanderbilt University Medical Center
Nashville, Tennessee, 37232, United States
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hopital de la Timone
Marseille, 13385, France
Conditions
Explore the condition pages connected to this study.